APPENDICES
App
- 7
Appendix 1 Precautions for Accessing Redundant CPU System
2) Access examples of path switching
The following shows examples of path switching during access to the control
system.
<When system switching occurs due to communication error>
Figure 1 Path switching example 1
MELSECNET/H
MELSECNET/H module
CC-Link IE Controller Network
Communication
error
Tracking cable
Personal computer
(CC-Link IE Controller
Network board)
CC-Link IE Controller Network module
MELSECNET/H
MELSECNET/H module
CC-Link IE Controller Network
Tracking cable
CC-Link IE Controller Network module
Personal computer
(CC-Link IE Controller
Network board)
Connection to the
control system
Connection to the
control system
Control system
Standby system
Control system
Standby system